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My Computer Restarts Automatically - Reasons & Solution

We have discussed many hardware related issues on this blog. This tutorial tells one of the common computer issues, unexpected automatic restarting of a computer. Once I faced this situation where my computer rebooted automatically without providing any warning and I lost every unsaved work. For a week this issue continued and at last, I fixed it. I believe having a guide for those who face the same problem can be very helpful to identify the reasons for the automatic restarting of their systems. If you can identify why your PC is rebooting suddenly without warning, you will be able to solve it very easily.

Reasons for Unexpected Automatic Reboot of Your Computer

Here we check common reasons for the issue. Some of them are software conflicts, hardware issues, and virus infection. Let us check carefully why should a computer restart without giving any warning.

Software /Driver Conflicts

When your PC acts strange, first verify the last installed software or driver on your computer has no compatibility issues. After installing new software or driver on your PC, if it has any compatibility issues, you may face this issue. If you think the automatic rebooting issue started after installing any new software, you need to uninstall the software from your PC either by add/remove programs or by the built-in software removal utility. If the issue persists even after uninstalling the software, you can perform a system restore to a date before the day when the driver was installed.

Uninstall the recently installed software

Perform a system restore to an old date

Hardware Issues

If there are no software compatibility issues on your system, you may check for possible hardware issues. Here is a list of potential hardware problems that can make your PC restarts automatically.

Heat-related issues

Brand new Laptops and PCs are designed in a way to shut down or restart automatically if the processor heat exceeds a certain level. Make sure your laptop does not have any heat related issues. Visit the link below to protect your computer from overheating. Protect Your Laptop From Overheating

Corrupted system memory

If the RAM modules in your PC are corrupted, that may cause an automatic system reboot. To verify it you should start your PC with another piece of RAM and check for the issue.

Dust particles in your system cabinet

Presence of dust particles in CPU may trigger automatic system restart. It is a good practice to clean system cabinet to make your PC free from dust particles.

Test Power Supply
Faulty power supply to your PC can make sure your computer either shut down or reboot automatically without warning. Test it and if you find any issues with power supply, replace it immediately.

Possible loose connections

It is also advised to disconnect hard disk, DVD drive from the motherboard and reconnect to avoid any loose connection.

If you are desperately looking for a quick fix to the automatic rebooting issue, you can tell your computer to don't restart automatically for any system error. By default Windows set automatic system reboot on every system failure. Though this option is for preventing further damages on your system, it is really frustrating to see unwanted system reboot for smaller issues. It is better you have the control to reboot your computer instead of an automatic reboot by your computer without your permission. In case if you want to disable automatic system reboot on system failure set on your computer, you can disable it under Startup and Recovery. You will see a checkbox to stop Automatic Reboot on Startup and Recovery settings window.

Windows 8 & Windows 7

Click Windows Start

Right Click Computer in Start menu and click Properties

Click Advanced System Settings

Click the Settings button under Startup and Recovery

Uncheck Checkbox near Automatically restart

For Windows XP

Right click on My Computer icon

Click the Properties

Click on the Advanced tab.

Click on the Settings button under Startup and Recovery.

In the Startup and Recovery window uncheck the Automatically restart check box.

Click OK.

PS: It is not a good practice to keep the checkbox at Automatically restart unchecked without fixing the exact reasons for the system failure.

My system restart when i install office 2007 and some times it restart when i install corel draw and even if open many windows of internet explorer it restart. kindly tell me if u have a solution of this.Thanks

hello sir,my computer automatically restarts when i open or scan using my escan antivirus on some specific folders and many a times,my computer hangs.nothing can be done after it ijust then press restart button

hello sir,my pc restarts automatically when it starts.my avg antivirus shows some virus,then i uninstall this avg s/w.But now when i install this avg s/w(under running process)not completely installed-my pc restarts again n again.And when next time pc is open avg shows some virus in any directory,whether it is not completely installed.What to do?

I understand from your message that your previously installed AntiVirus showed some virus alerts and was restarting your computer. You uninstalled it and now facing issues with installing AntiVirus again.

Reason:

You cannot successfully install AntiVirus software in a virus infected computer. So better you remove the infection and then try to install a fresh AntiVirus.